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Debian Security Advisory DSA-2566-1                   security@debian.org
http://www.debian.org/security/                                Nico Golde
October 25, 2012                       http://www.debian.org/security/faq
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Package        : exim4
Vulnerability  : heap-based buffer overflow
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2012-5671

It was discovered that Exim, a mail transport agent, is not properly
handling the decoding of DNS records for DKIM.  Specifically, crafted
records can yield to a heap-based buffer overflow.  An attacker can
exploit this flaw to execute arbitrary code.

For the stable distribution (squeeze), this problem has been fixed in
version 4.72-6+squeeze3.

For the testing distribution (wheezy), this problem has been fixed in
version 4.80-5.1.

For the unstable distribution (sid), this problem has been fixed in
version 4.80-5.1.


We recommend that you upgrade your exim4 packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

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